From 4d41d36232637af1e24bae6272e647342c022901 Mon Sep 17 00:00:00 2001
From: Rodrigo Alves da Silva Matos <rmatos@CLICKBUS0673.clickbus.local>
Date: Thu, 13 Aug 2026 18:32:29 -0300
Subject: [PATCH] fix(platform): hide zero-sample origins from repo
 stabilization-by-origin
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The engine defaults stabilization_ratio to 1.0 when files_touched is 0
(iris/metrics/stabilization.py: "nothing to destabilize" sentinel for a
0/0 division). The report writer already guards against this — it skips
any origin with a zero commit count (iris/reports/writer.py) — but the
platform's repo detail chart rendered every origin unconditionally,
so an origin with zero real commits in the window showed a misleading
"100%" right next to another origin's real percentage (e.g. Bot 100% /
Humano 100% / Assistido por IA 23%, when only AI-assisted had any
commits at all).

Filter to origins with files_touched > 0 before rendering, matching the
writer's own convention, and hide the whole "Estabilização por origem"
block when nothing survives the filter.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
---
 .../app/[tenant]/repos/[repoName]/charts.tsx  | 36 ++++++++++++-------
 1 file changed, 24 insertions(+), 12 deletions(-)

diff --git a/platform/src/app/[tenant]/repos/[repoName]/charts.tsx b/platform/src/app/[tenant]/repos/[repoName]/charts.tsx
index 03f4600..bf24b46 100644
--- a/platform/src/app/[tenant]/repos/[repoName]/charts.tsx
+++ b/platform/src/app/[tenant]/repos/[repoName]/charts.tsx
@@ -881,14 +881,26 @@ export function RepoCharts({
                   BOT: "bg-signal-gray",
                 }}
               />
-              {insights.stabilizationByOrigin && (
-                <div className="mt-3">
-                  <p className="mb-1 text-xs text-muted-foreground">
-                    {t("repoCharts.origin.stabByOrigin")}
-                  </p>
-                  <div className="space-y-1">
-                    {Object.entries(insights.stabilizationByOrigin).map(
-                      ([origin, data]) => (
+              {(() => {
+                // The engine defaults stabilization_ratio to 1.0 when
+                // files_touched is 0 (nothing to destabilize — see
+                // iris/metrics/stabilization.py), the same 0/0 sentinel the
+                // report writer already guards against (writer.py skips any
+                // origin with a zero commit count). Showing that default
+                // here reads as "Bot 100%" / "Humano 100%" for origins that
+                // made zero commits in the window, right next to a real 23%
+                // for the origin that actually has data.
+                const stabEntries = Object.entries(
+                  insights.stabilizationByOrigin ?? {},
+                ).filter(([, data]) => data.files_touched > 0);
+                if (stabEntries.length === 0) return null;
+                return (
+                  <div className="mt-3">
+                    <p className="mb-1 text-xs text-muted-foreground">
+                      {t("repoCharts.origin.stabByOrigin")}
+                    </p>
+                    <div className="space-y-1">
+                      {stabEntries.map(([origin, data]) => (
                         <div
                           key={origin}
                           className="flex justify-between text-sm"
@@ -900,11 +912,11 @@ export function RepoCharts({
                             {(data.stabilization_ratio * 100).toFixed(0)}%
                           </span>
                         </div>
-                      ),
-                    )}
+                      ))}
+                    </div>
                   </div>
-                </div>
-              )}
+                );
+              })()}
             </CardContent>
           </Card>
         )}